7. It is a technique developed to determine the number of trips that begin or end at home. 8. These analysis are conducted to determine the impact on traffic and the need for transportation services in the immediate vicinity of a proposed development as a result of a change in zoning designations. 9. These are used primarily to distribute trips between zones in the study area and zones in cities external to the study area.

7. It is a technique developed to determine the number of trips that begin or end at home. 8. These analysis are conducted to determine the impact on traffic and the need for transportation services in the immediate vicinity of a proposed development as a result of a change in zoning designations. 9. These are used primarily to distribute trips between zones in the study area and zones in cities external to the study area.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter11: The Transportation Planning Process

Section: Chapter Questions

Problem 22P

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Find at least 5 Case Studies/ Projects related to transportation engineering that utilized Trip Generation, Trip Distribution, Model Split and Trip Assignment.
2. A four zones city has two residential zones A and B, generating 725 and 575 trips, respectively. These trips go to two employment zones C and D, attracting 875 abd 425 trips respectively. The travel time, friction factors, between zones is given as Route AC AD BC BD Travel Time 8 15 10 13 Friction Factors 90 10 60 50 (a) Estimate the trips generating from A and B respectively (b) The OD survey that was performed for this city indicates that the actual number of trips on each route was as follows, AC=650, AD=75, BC-400 and BD = 175. (c) Determine the new friction factor Fij in order the replicate the actual trip movements.
12) List and define the 4 steps of the "4-step travel demand model" used in transportation planning.
Using the data on the table, determine the following using transit rule.
e) Given the household and demographic data presented in Table 1, calculate the total number of AM Peak trips produced and attracted in each of the zones in Springtown (rounded up to the nearest integer). Comment on the validity of the results. Are the values obtained consistent with the land use described in the brief? Clearly justify your response. Table 1: Current zonal household data for Springtown Zones Households Average Household Number of Household Number of Average Average Average Office Retail Space (m²) Space (m2) Income Vehicles size Workers ('000s) Per per Household Household Zone 1 9000 97.2 1.6 2.3 1.8 250000 350000 Zone 2 5000 96.7 0.9 3.3 1.9 80000 10000 Zone 3 6500 74.8 1.1 2.7 1.3 35000 25000 Zone 4 2500 69.5 1.5 2.1 1.5 10000 10000 f) In order to improve the accuracy of the trip production model, you are considering collecting data for another variable related to trip generation. Which variable would you select and why?
1. What is the main objective of conducting a transportation project evaluation?2. Describe four basic issues that should be considered prior to selection of an evaluation procedure.3. List the basic criteria used for evaluating transportation alternatives. What units are used for measurement?
Describe the process of environmental impact assessment (EIA) in transportation projects.
QUESTION 3 a) Describe the factors affecting trip production and trip attraction in a zonal level. Explain their effects on trip generation and why. b) Describe potential travel demand management strategies which can increase average vehicle occupancy during commuter peak hours. Explain how these strategies would change travel patterns, travel time and fuel consumption. e) Explain how residential development in low-density suburban areas affects mode choice and travel distance of work trips. QUESTION 4
Describe the different methods in transportation evaluation based on multiple criteria.
to no congestion on the road further downstream of the railway grade crossing. QUESTION 5: Consider trip distribution within 5 zones in an area. The total trip production from zone 1 is 1000. The travel times from zone 1 to zones 2, 3, 4 and 5 are 5, 10, 20, and 30 minutes, respectively. The trip attraction to zones 2, 3, 4 and 5 are 50, 200, 75, and 450, respectively. Assume that the number of trips produced from zone 1 to zones 2, 3, 4 and 5 is inversely proportional to the inter-zonal travel time. (a) Estimate the number of trips from zone 1 to zones 2, 3, 4 and 5 using the gravity model. (b) Assume that the future trip production from zone I will increase to 1,250 and the future trip attraction to zones 2, 3, 4 and 5 will increase to 100, 225, 100, and 600, respectively. Predict the number of trips from zone 1 to zones 2, 3, 4 and 5. The inter-zonal travel times remain the same. (c) Compare the number of trips from zone 1 to each destination zone between (a) and (b). Identify the…
What are the main components or tasks of a typical comprehensive Urban Transportation Planning Process(UTPP) study in an urban area?
The following socioeconomic data have been collected for the Jeffersonville Transportation Study (JTS). Population = 72,173 Area = 70 square miles Registered Vehicles = 26,685 Single-family housing units = 15,675 Apartment units = 7567 Retail employment = 5502 Nonretail employment = 27,324 Student attendance = 28,551 by zone of attendance Average household income = $17,500 Total traffic zones = 129 The results of the cross-classification analysis are as follows. Total trips produced for study area = 282,150 trips/day Home-to-work trips 13% (36,680) Home-to-nonwork trips 62% (174,933) Non-home trips 25% (70,537) The attraction rates for the study area have been developed using the following assumptions. 100% of home-to-work trips go to employment locations. Home-to-nonwork trips are divided into the following types. Visit…